About Us Hero

Product and Ingredient Testing for the Food and Feed Industries


Working together with you!

NP Analytical Laboratories (NPAL) was founded in St. Louis, MO in 1916, on the second floor of a building on the corner of Eighth & Gratiot. It was here that Mr. S. Merrill started the chemical analysis laboratory - one of the first quality control laboratories in the feed industry. Today our chemists and microbiologists are recognized industry leaders in food and feed testing. We work closely with research and quality teams to implement test methods that keep NPAL at the forefront of testing laboratories.

We are proud to continue our 100 year tradition of providing state-of-the-art testing and consulting to support research, product development, and product quality. Together with you, we continue to advance knowledge of food science and animal nutrition and provide tools for developing and maintaining quality products in the marketplace.

NPAL maintains a comprehensive quality program that includes qualified personnel, validated test methods proficiency sample programs, automated sample tracking, long-term record retention and an Independent Quality Unit which reviews test protocols, evaluates check sample results, and conducts independent audits. To learn more visit Our Services page.


Testing Protocols and Accreditation

Our methods are rigorously tested and whenever possible based on internationally recognized protocols, including but not limited to procedure published by the Association of Official Analytical Chemists, the American Oil Chemists Society, and the American Association of Cereal Chemists.

The quality of your data is assured through comprehensive staff training, laboratory audits, and proficiency testing. And, because we know deadlines are as important as the results, we work with you to keep your project on track.

NP Analytical is ISO 17025:2017 accredited for biological and chemistry testing. Click links below to view our accreditation for biological testing and chemistry testing.

All services provided by NPAL will be performed in accordance with the NPAL Quality Assurance Program. Please notify us of specific documentation requirements prior to the start of any services.

Biological Testing certificate

NP Analytical is ISO 17025:2017
accredited for biological testing

Chemistry Testing Thumbnail

NP Analytical is ISO 17025:2017
accredited for chemistry testing

NPAL Brochure thumbnail

NPAL Brochure

NPAL Trust Brochure Thumbnail

NPAL 100 Years of Trust Brochure

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NPAL Holiday Calendar